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INSTALLATION
5
Bring Covers Flush-to-Grade
The GB-1000 is ready for burial depth of 77" from finished grade to bottom of tank (or 18" to centerline of inlet).
Deeper burials will require extending the Cover Adapters and possibly adding risers.
Measure dimension X to determine riser height needed.
5a
5c
Loosen the
Cover Adapter Upper
Band Clamp using 7/16"
Nut Driver Bit.
GB-1000 Installation Guide
Riser Height
Risers
Needed
Required
0" - 4"
None (use adapter)
>4" - 34"
FCR2 (x2)
>34" - 64"
FCR2 (x4)
>64" - 94"
FCR2 (x6)
5d
2-1
2" minimum
/
Adjust Cover Adapter
heights as needed.
Maintain a minimum
2-1/2" insertion depth.
5b
Install risers if required
(see instructions included with FCR2).
5e
Tighten Upper
Band Clamp to 5 -8 ft.
lbs. of torque using 7/16"
Nut Driver Bit.
5f
If required, Cover Adapters
may now be tilted up to
10º in any direction using
gasket flexibility.
Page 6 of 8
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